AD5541A
DECODING MULTIPLE DACS
The CS pin of the AD5541A can be used to select one of a
number of DACs. All devices receive the same serial clock and
serial data, but only one device receives the CS signal at any one
time. The DAC addressed is determined by the decoder. There is
some digital feedthrough from the digital input lines. Using a
burst clock minimizes the effects of digital feedthrough on the
analog signal channels. Figure 35 shows a typical circuit.
Data Sheet
SCLK
DIN
ENABLE
CODED
ADDRESS
AD5541A
CS
DIN
VOUT
VDD
SCLK
EN
DECODER
DGND
AD5541A
CS
DIN
SCLK
VOUT
AD5541A
CS
DIN
SCLK
VOUT
AD5541A
CS
DIN
VOUT
SCLK
Figure 35. Addressing Multiple DACs
Rev. B | Page 18 of 20